HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$1,599+ Cheap flights from Green Bay (GRB) to Keflavik Intl (KEF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — KEF
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Green Bay to Keflavik Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Green Bay to Keflavik Intl

Best flights from Green Bay to Keflavik Intl
Discover carefully curated flight deals from Green Bay to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This British Airways deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2211:20 amGRB - KEF
2 stops23h 55mBritish Airways
Mon 1/2611:50 amKEF - GRB
2 stops34h 33mBritish Airways
Deal found 12/10$1,599
This British Airways deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/234:53 pmGRB - KEF
2 stops42h 12mBritish Airways
Tue 1/2711:50 amKEF - GRB
2 stops40h 24mBritish Airways
Deal found 12/9$1,606

Find flight deals from Green Bay to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$693
(FlightHub)
Provider with most accurate pricing for Green Bay Austin-Straubel-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-Reykjavik Keflavik Intl flights.
Search Deals
From Green Bay Austin-Straubel to Reykjavik Keflavik Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay to Keflavik Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Green Bay to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Green Bay

Fly to

Keflavik Intl

Route

Depart

Return

Price

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

Thu 1/22

11:20 am-5:15 pm

2 stops23h 55m

Reykjavik Keflavik Intl

Mon 1/26

11:50 am-4:23 pm

2 stops34h 33m

$1,599

Green BayReykjavik

GRB - KEF

GRBKEF

Green Bay Austin-Straubel

Fri 1/23

4:53 pm-5:05 pm

2 stops42h 12m

Reykjavik Keflavik Intl

Tue 1/27

11:50 am-10:14 pm

2 stops40h 24m

$1,606

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

  • Most accurate provider: When it comes to deals on Green Bay-Reykjavik Keflavik Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Green Bay-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Green Bay-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Green Bay-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Green Bay-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Green Bay to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Green Bay with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Keflavik Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Green Bay to Reykjavik Keflavik Intl?

    Located just 5.9 mi from the city center, Green Bay Austin-Straubel is the airport most travelers will use when flying to Reykjavik Keflavik Intl from Green Bay. Booking flights from Austin-Straubel (GRB) to Reykjavik Keflavik Intl should be relatively easy as there are 0 daily outbound flights to Reykjavik Keflavik Intl from 0 different airlines.

  • How long is the flight from Green Bay to Reykjavik Keflavik Intl Airport?

    Departing from Green Bay to Reykjavik Keflavik Intl Airport will take you 23h 55m. The distance between Green Bay and Reykjavik Keflavik Intl Airport is about 2803 mi.

  • Can I find deals for flights from Green Bay to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Green Bay to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Green Bay to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Green Bay to Keflavik Intl.

  • Can I find deals for business class flights from Green Bay to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Green Bay to Keflavik Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.